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空时信道模型在智能天线系统性能的评估中是非常重要的。对智能天线系统中常用的空时信道模型做了详细的介绍 ,分析了每种模型的特点和每种模型所适用的具体情况。对其中得到广泛使用的GBSB模型具体分析了到达角、时延概率函数以及Doppler谱 ,并做了计算机模拟 ,认为Clarke模型是其中的一个特例。
The space-time channel model is very important in the evaluation of smart antenna system performance. The space-time channel model commonly used in smart antenna system is introduced in detail, and the characteristics of each model and the specific conditions applicable to each model are analyzed. Clarke model is a special case of GBSB model which is widely used in this paper. The angle of arrival, the delay probability function and the Doppler spectrum are analyzed in detail.